What is the theory of half wave rectifier?
A half wave rectifier is defined as a type of rectifier that only allows one half-cycle of an AC voltage waveform to pass, blocking the other half-cycle. Half-wave rectifiers are used to convert AC voltage to DC voltage, and only require a single diode to construct.
What is the working principle of controlled rectifier?
Operation of Phase Controlled Rectifier. The basic working principle of a PCR circuit is explained using a single phase half wave PCR circuit with a RL load resistive shown in the following circuit. A single phase half wave Thyristor converter circuit is used to convert AC to DC power conversion.
What is the advantage of half wave rectifier?
Advantages of half-wave rectifier: Half wave rectifier is a simple circuit. It has a low cost. We can easy to use it. We can easily construct.
What are the different types of controlled rectifier?
There are two types of controlled rectifiers, and they are Half Wave Controlled Rectifier and Full Wave Controlled Rectifier. Half-wave controlled rectifier has the same design as the half-wave uncontrolled rectifier except we replace the diode with an SCR.
What is individual phase control?
Individual Phase Control(IPC) – These where used in early days when Mercury arc valves where used. – Firing instances is determined individually for each valve i.e., phase position of each control pulses is determined separately for each valve and related to commutation voltage. –
What are the advantages and the disadvantages of phase control?
Phase angle control of SCR’s has the advantage of being able to control to very fine resolution while it’s disadvantages include higher harmonic distortion and RFI when compared to zero-crossing techniques. It is best suited for fast responding loads such as lamps, as well as transformer coupled or inductive loads.
What are the advantages of a full wave rectifier over a half wave rectifier?
1) The rectification efficiency of full wave rectifier is double than the half wave rectifier because it converts both the cycles of AC to DC. 2)Ripple factor is less in full wave rectifier so waveform is smooth. 3)The ripple frequency is also double so they are easy to filter out.